diff --git a/CHANGELOG.md b/CHANGELOG.md
index 182e1163f0b6533feec9137106bc1617aa3c878d..d05665fcb90895ba2342d4b4b7ea7298deabfe42 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# v1.2.6
+
+* _TBA_
+
 # v1.2.5
 
 * bugfix: fixed `log_frames` in `Cluster`
diff --git a/coolamqp/__init__.py b/coolamqp/__init__.py
index 09964d630dd1cc3c4cf540190af0598b98ad2409..f9273f3273a57856cd3ff874fbfb72d80bb04b3a 100644
--- a/coolamqp/__init__.py
+++ b/coolamqp/__init__.py
@@ -1 +1 @@
-__version__ = '1.2.5'
+__version__ = '1.2.6_a1'